Percussion-fuse.



K. WIESER.

PERCUSSION FUSE.

APPLICATION FILED MAR. v, 1913 1 1 08,8 19. Patented Aug. 25, 191 1 4* 2 2?? r d I *3: 3

UNITED .sTATEs PATENT o rricn.

\VIESER, OF BREDENEY, GERMANY, ASSIGNOR TO FRIED. KRUPP AKTIE N- GESELLSCHAFT, OF ESSEN-ON-THERUHR, GERMANY.

' PERCUSSION-FUSE.

To all whom it may concern lie it known that I, Kain, IEBE'R, residing at ln'edeney, Germany, subject of the Emperor of Germany, have-invcnted a certain new and useful Improvement in Percussion-Fuses, of which thefollowing is a specification.

The present invention relates to a new and particular percussionfuse-provided with a retarding mechanism to be thrown into and out of operation.

In the drawim is shown, as a constructional example of the subject matter of the inrentioma base fuse which acts automatically either with or without retardation, ac-

cording as the violence of the impact is greater or less.

In Figures 1 and 2 two axial longitudinal sections ofthe fuse are represented, each showing certain parts of the fuse in difierent position.

The {use casing A which i closed in'front bya plug screw a, carriesa striker B, containing the primer and adapted tonioi'e-in the direction of't-he plug screw (1 when the projectile strikes. upon the target. The striker is prevented-from m'oring,.whenthe shot is fired, b a safety device C acting under centrifugal action and of any known.

construction.

The primer consists of two priming charge I) and b of differentkind and placed one behind the other. The frontpriming charge'b, is made from a retarding composition, which when ignited by a firing pin burns away slowly without explosion, but which explodes, when strongly ignited by a powerful jet of flame; The well known retarding compositions -are composed of a pellet of black powder anda pellet offfuh' desired kind: sallpetcr 76%: sulfur: 12%;

coal: 14%; chlorate of potash-14%.

The second priming charge, IF. is of Fllt'li Specification of Letters Patent.

Application filed. March 7, 1913.

Patented A g 25,1!514 Serial NQ 752 670' a I a composition (for example-"fi lininzitei of mercury) that it explodes both when ignited by firing pin and when subjected tojthe action of an igniting flame. Inffr ont oftlie striker I) there is arranged in the-fuse easing A a Partition wall a Against the end face of the partition wall a remote from the striker B bear's i' secbnd striker D which move in the sani direction as the striker B. The striker D is prei' ented from mov ng by a compressible ring'flufthe ax s of which coincides with thelongltjudinal axis of the fuse. vThe strength oft-his riiw is so adjusted that it can onlj be compressed hy the striker D (see Fig. 2), .i'vh eirtliepio jectile strikes againsta rer 'resisting target such as an armor plate or ex:. iple', but when the pro ectile strikes alga t aflijody which offers but little resistance. t do not appreciably change itsffshap e 'sdtiiatf the strzkenD remains in'its'original{position (see 1* 1g. 1). The striker Diondfliich is mounted the firing pin" i -which I passes through an opening a in thepartiticn wall a has in its center a passage 1. ri'n'i'ni'ng' in axial direction. This passage coiiiiinin 'cates on the one hand, through the. inedhiiii' of the opening a in the partition wall iitlr the space in which the jet of flaine'is prod and on the 'other hand, through the nieiliuin of a hole a provided in the 'phig'screw with the percussion charge F which arranged in the plug screw a. I

The length of the firin pin (/f' sir-proportioned. that when' the projectile strikes and the striker B shot forwarrl llhcieln"; the firing pin can penetrate right up;to the rear priming charge 6 when the striker 1) remains in its original position (s-cc Fig. l but canouly igniteihe frontslowlwhur'iimr priming charge 7;. whcir-thestri-kci- 1) .slinnls forward, with the simult'liiicous'Yoiiip'ivisiiin of the ring R. Y

The action ol the fuse is'as ioi-loiisl \Vhen the projectile strike. 'iinsiiciarzct which otl'crs luu little resist. ncc flu-striker B only shoots torwai'il. \iil i'lethimum- D remains in pi'zu-ticall its original pnsilion. owing to thc resi taiu-c of the ring ll in-i- Fig. ll. The firing pin 1 therefore prise li'atcs right up to the re-ii p iming charge If. which imuicdiatclr ('Xliltults and simultancouslv cause the priming charge explode als The jct ol llaimo ,w-udm-aa passes without any retardation alongihc' iced,

sov

lion the other: hand the projectile strikes. zagamst -a resisting target. the strikrrll Course-(f, (7 a to the'percussiou clml'gc if.

shoots forward also under the inlluc'nrc of g'g burnt out, that is to say after the expiration.

the violent shock, overcoming the resistance of the ring-E as it docs so. Fig. into l'llls this In this case (see 2) the firing pin a. can'onlv penetrate the front priming charge L, which, in case, burns away slowlyl priming charge has almost completely of a definite time, is the rear priming charge 12" caused to explode by the fianieof the ,J-burning' priming charge Z), and only now does the ignition of the percussion charge F talceplace, by the lame issuing fronrthe priming charge 6 The fuse therefore acts with-retardation. v

claim: Y '1. A combinationfuse for quick and de layed action, having a selfadjustingvfiring pin, a. primer and a striker: said striker moving-on impactj'j m cooperation with-said firing pin, causing the ignition ofsaid primer. said prnncr compin, a primer and a striker; said striker" moving on impact of the pro ect le, thereby,

in cooperation with said firing pin causing the ignitionof said primer comprising two pellets one behind the other, the one pellet nearest to the firing pin consisting of a slow burning composition and the other pellet-rcmot'est froin the firing pin consisting of quick match {said firing pinafter an impa .t

of, the projectil'envith a target of great resistance, havingsuch a position that it can reach only the slow burnin'g pellet, and the firig gpin-after an impact of-the projectile witha target of slight resistance having such a position that it will reach the quick burning pellet. v i

.,3..-\ combination fuse for quick and delayed action. having a self-adjusting firing pin, a primer, two strikers Eiul'a housing therefor;.both ot.said strikers being in a'li'nement.- and one of the strikers carrying said-firing pin and the other striker carry ing said primer; said primer comprising "two pellets one behind the other, the pellet nearest the firing pin consisting of a slow burning composition and the ot-hcrpcll'et consisting of (nick match; a'yielding member interposed between the wall of said housing and one of said strikers, said yieldjmemhcr 1 const to withstand the Only "a fter' of the projectile. thereby,v

said first-named priming charge only on stance,- but will penetrate only the slowburning pellet causing delayed action of the fuse in the secondfinstance.

4.'i-\- combination fuse for quickand de laycd actiQl, ajin'g animpact member carrying a firing pin, another impact member carrying a primer, said impact members heingarrangedone behind the other and the rear one adapted to move on impact of the pro ectile thereby causing said firing pin to igniteJ- the'primer, said primer comprising two priminglchargesone behind the other, the one pruning charge lying next said firing pin consisting of a. composition adapted to'burn away slowly without explosion when ignited by said firing pin on impact, but to explode when ignited by a powerful et of flame, and the other priming; v charge consisting of a quick match; Izihd means for holding said impact members in a variable distance from another at the end of the movement of said rear impact member, whereby the firing pin according to the quantity of said distance-may ignite 'cither said'first named priming charge only or both priming charges.

.3. A comb nation fuse for quick and de- :yed act-ion, having an impact mnnber car ;ying'a firing pin, another impact member carryinga primer, said impact members being arranged one behind" the other-and the. rear one adapted to move on impact of the projectile thereby causing said firing pin-to ignite the primer, said primer co:n prising t o priming charges one behind the other, the one priming charge lying next said firing pin consisting of a homogeneous mass adapted to earn away slowly without explosion when ignited by said'firing pin on impact, but to explode-when ignited by powert'ul jet of flame, and the other prirn-- iag charge consisting of a quick match; and i-ncans for holding said impact membersin a variable distance from another at the end f the movrmcnt of said rear im act mem her, whereby the firingpin accor ing to the quantity of said distance may ignite either hot-h priming charges.

.6. A combination fuseforself adjusting quick and delayed action, having animpact member earning a firing ,pin,'another 1mpactmember carrying a. primer, said impact members being arranged one behind the 125 other and adapted to moveboth forward on impact of the projectile, thereby causin said firing pin to ignite the primer, sai primer comprising two priming 'c lrargcsfone' behind the other, the one rimming harg ,180

3520;; next said fivingpin mnsisi'ing of a cumpomtlon adapted t?) burn away slowly wathnnt exploslon when lgmted by a powex fail jet of flame, and the other prnnmg '3 :tuarge consisting of a quick match; and

pin may ignite eiflml' said firstnmxmi ii 11:1 1

i mg Charge only 01 both prin'iing charms.

\ The Pmrmen, Germany, this 145th day of Fm- 1 rum'y, 1913. '2

'furogolng specific-(1601; signed. at

KARL WES-ER, 1n presence 0f- HELEN NUFER,

ALBERT F. NUFER. 

